Steam-trap.



No. 65I,0I2. Patented lune 5, |900. G. GUILD.

STEAM TRAP.

- (Application led Jan. 22, 1900.) l (No Model.) 2 Sheets-Sheet I.

Wi'fgcsses I No. 65mm. Patented me 5, |900. v a. GUILD.

STEAM TRAP.

(Application Bled Jan. 22, 1900.)

UNITED STATES PATENT Gratien.,

'GEORGE (il-'livin 0l` IOUS'IN, TEXAS, ASSIGNQR T0 NVILLLUI ll. REYNOLDS, 0F HALVES'VON, TEXAS.

STEAM-TRAP.

SPECIFICATION forming partof Letters Patent No. 651,012, dated June 5, 1900. ApplioatioufiledJanuary22,1900. Serial No. 2.365. fNn modela zen of the United States, residing at Houston, A

in the county of lIarris and State oi' Texas, have invented a newand useful Stealn-'lra-p, of which the following is a specification.

This invention relates to an improved steam-separating trap orsteam-eliminator for obtaining'a supply of dry steam to an engine or like machinery; and ithas for its object to provide an apparatus of this character having simple and eliicient means for eliminating water, entrained moisture, grease,or other impurities from steam at any pressure and automatically discharge the water of condensation and other impurities from the trap and permit the steam to passin a thoroughly-dry condition to the point of use.

To this end the invention primarily contemplates certain improvement-s in thel construction of the steam-separating ltrap disclosed in Patent No. 634,659, granted October 10, 1899, and has in view improved means for controlling the valves which operate wit-h a float to provide for an automa-tie discharge of the accumulated water of condensation and other h npurities.

lith this and other objects in view the invention consists in the construction and ar` rangement of the several parts, which will be more fully hereinafterdescribed and claimed.

In the drawings, Figure 1 is a vertical sectional view of a steam-separating trap embodying one form ot the improvement contemplated and showing t-he positions of the various parts when the trap is at rest and while the water of condensation is accumulating. Fig. 2 is asimilar view showing another form of the improvement.

Similar nu morals ol1 reference are employed to indicate corresponding parts in the views. Referring io both forms ot' the improvement, the numeral 1 designates an upright trap-casing preferably consisting of the upper and lower sections Zand 3, ilanged and bolted together at thei r con tiguous edges, said easing being provided near the top with oppositely-located steam inlet and outlet necks 4 and 5, respectively, `which are adapted to have coupled thereto the line ol piping carrying the supplyoi steam to be subieeted to the separating action oi" the trap. A verticallyarranged bathe-plate 6 is fitted within the upper portion ofthe casing between the steam inlets and out-lets; and 5 and terminates short. 55 of the easing-top, said baille-'plate being pro-l vided at-its lower 'end with a lateral outwardly and Vdownwardly inclined flange 7, which terminates short ot the adjacent wall of the casing to provide a passage for, the 6o `water ot condensation. The said bathe-plate intercepts the moisture-laden steam entering the inlet i and causes the moisture contained in the steam to be-condensed, separated therefrom, and deflected downwardly into the 65 lower portion or section ot the trap, as will be presently referred to, while the dry steam is permit-ted to pass over the upper end ot' the baille-plate and, thence through the outlet 5.

In the use of the trap the lower or bottom 7o portion of the casingl, which constitutes the water-chamber of the apparatus, is designed to hold sufiicient water to operate the improved mechanism, and at any time should it be desired to draw ofi the water from the 75. casing at the lower portionand blow out the accumulated sediment itcan be accomplished by a particular mechanism slightly differing' in the two forms of the improved device.

In the form of the improvement shown by 8o Fig. 1 a float-cylinder 8 is connected tothe lower portion or water-chamber ot' the trap by vupper and lower short lengths ot'v pipe Si, the lower pipe 9 being above the bottom of the water-chamber, and the said cylinder S is S5 otherwiseftightly sealed and is supplied with upper and lower heads 10 and 11. The cylinder 8, as shown, is disposed vertically, and fixed in the upper head IOthereofisa valvechamoeri, having a vertically-reciprocating 9o valve 13 lnonnted therein and provided with a depending tubular stem 11i, movable through the lower end of the valve-chamber and the head 10 and attached at its lower extremity to a closed float 15 of elongated form, which 95 is freely movable in' the -cylinder S. The lower vextremity of the depending tubular valve-stem 1i is also closed, and above said extremity said stem is provided with an in gross-port 16 to allord means of communicaio@ tion between the cylinder Sand thesiem and between the latter and the valve li; b v mente of a tubular channel 17, formed in the said valve and in communication with a port 18. To the upperI portion of the valve-chamber 12 the upper extremity of a steam-pipe 19 is attached, and the port 18 of the valve 13 is adapted to coincidewith the entrance-opening of the said steam-pipe into the valvechamber, or said steam-pipe may communi cate with a transverse port 2O in the upper portion of the valve 13, by means of which direct communication maybe set up with `au exhaust-pipe 21.1'or use in relieving back pressure from a cylinder 22, with which the lower extremity of the steam-pipe 19 is connected. The said cylinder 22 is disposed horizontally and below the plane ofthe bottom of the water-chamber of the trap and has therein a piston 23, haring a winged stem 24, working through the valve-casiug 25 and operating to control or open the main trap-valve 26. `The said main trap-valve 2G regulates the com munication between a pipe 28, havinga valve 29 anvil connected to the central portion ofthe bottom of the water-chamber,and a dischargeppe 30 and to permit the water of condensation or other accumulated matter in the water-chamber of the trap to be run oit. The area of the `piston 23 is greater than that of the trap-valve 2G fora purpose which will be presently set forth, and at a point opposite to the position and connection of the cylinder 8 with the lower part of the trap or water-chamber the latter hasa gage 31 connected thereto for obvious reasons. v

The operation of the improvement thus far described is very simple and is las follows:

Then the reservoir or water-chamber of the trap is emptied, the valve 13 is down in the position shown by Fig. 1, and the upper cX- tremity of the pipe 19 is thrown into communication with the exhaust pipe 21 -hy the transverse port 20 of the said valve and whereby the steam is exhausted from the cylinder 22 subsequently to an operation of a nature fi o that will new be particularly described. As the water ot condensation is slowly .relieved or drawn from the water-chamber of the trap the tloat 15 is slowly lowered in the cylinder S and pulls down the valve 13 to the position shown. This position of the valve permits the steam to be exhaust-ed from the cylinder 22, as before stated, and at aproper time the valve 2G is closed. As the Water of condensation again rises in the water-chamber hy ruiming down ot'f of the baffle-plate aboveit enters the cylinder 8 through the lower pipe t), and when it has risen in the said cylinder to about two-thirds of the height of the float 15 or until said portion of the lioat is submerged the-float will commence to rise with the water and through the medium ot the stem 'le gradually raise the valve i3, and thereby close the exhaust-pipe 21 and the communicating opening of the steau'v pipe 19, and said upward movement of the valve 13 will continue until the port 1S comes in line with the ingresaopening of the said steam-pipe 19 with the valvechamber to thereby admit steam to the cylinder 22. The steam passes through the upper pipe'9 from the trap and through the port 16 of 4the hollow stern 14 into the channel 17 of the valve 13 and out the port 18 to thesaid steam-pipe. The steam entering -the cylinder 22 acts against the piston 23 and forces it over toward the right, and by means of the stem 24 the said piston opens the valve 26 and permits the water of` condensation to be'drained from the water-chamber. The bore of the pipe 9 being smaller than the connection with the valve 29 to the bottom of the water-chamber ot the trap provides for a slower fall of the water in the cylinder 8 than in -the chamber, and by this means the valve l'is caused to slowly descend with the depression of the float 15, so that the water will allbe drained from the water-chamber of the trap before exhaustion of the' steam from the cylinder 22 and a consequent /closing operation "of the valve 26. At the tiniethat'exhaustion ofthe steam from the cylinder 22 takes place thc parts are arranged/asfbefore set forthv and clearly shown, andiwhen the steam-pressure is relieved from'ythepiston 23. the internal pressure from thefwater-chamber will seat the valve 26. lmie valve 26 will remain in its closed position until the float 15 againV rises to such aipoint as to movethe valve 13 and establish steam communication with the cylinder 22, and/in' the proportions of the piston 23 and valve 26 care should always be exercised in making the piston of such area as to overcome vthe resistance set up by the' valve or the pressure behind the same.

The construction shown by Fig. 2 embodies the same principle, but is nearer like the arrangement of vparts disclosed in the patent aforesaid, and entering the lower portion of the water-chamber of the trap is a Siphon discharge-pipe 31, inaiulylarraugedexterior to the trap-casing and provided with an interior pendent-limb 32, which is located wholly within the said trap-casing and has its free extremity in close proximity to the bottom ot the water-chamber, whereby only a small amount of water will be lettin the said wa- IIO ter-chamberwhen thesteam has blown out as much of the accumulated water as possible. The horizontal portion of the discharge-pipe 31 exterior to the trap-casing liascoupled thereto a valve-case fitting 33, having intermediate its ends an outlet'ueck 34, communicating with the main discharge-limb of the discharge-pipe 35, and contiguous to the inlet end thereof the valve-case fitting is formed with a valve-chamber 36, having an annular beveled valve-scat 37, and housed in the said fitting to operate with the seat is a Valve 3S. This valve 38 forms a discharge-Valve, and in its operation registers with the said valve-seat l .as

space the valve therefrom when the water is discharging from the water-chamber oi' the trap. The valve-casetting is provided at one side of the valve-chamber 36 with a longitudinal bore 40 in communication with the outlet-neck 34, and therein is movably located the winged guide-stem Lil of the valve 3S,and normally one extremity ot thesaid stem projects into the steam-cylinder f 2, pro- `iected from the end of the valve-case iitting opposite the valve-chamber 36 and of a greater diameter than the said latter chamber. said chamber or cylinder 42 has a piston 4S mounted for loose reciproeation therein and also provided with a relief-port 44, extending from end to endthereof, and with a stop projection #i5 for obvious reasons. Coupled to the said chamber or cylinder 2 is one end of a steam-pipe 4G, the other end of said latter pipe projecting within the lower or waterchamber portion of the trap-casing and having an upwardly-disposed extension 47 to provide a valve-seat to receive the steam-controlling valve 4S, fixed to and'operated by one extremity of a lever 49.' The said lever 49 is fulcrumed, as at 50, and movably attached to its free extremity is a stem 51- of a closed Iioat 52, movable within a vertically-disposed cylinder 53, located in the water-chamber of the trap and having a lower small port 5l above the bottom of the said water-chamber. Within the cylinder 53 stop projections 55 are located to limit the downward movement of the fioat 52. 4

In order that the apparatus shown by Fig. 2 may be inspected at any time desired, the portion of, the discharge-pipe between the valve-case iitting and the trap-casing is provided with a globe or cut-off valve 55, and the steam-pipe 4G also has a valve 5U therein, and in order to permit the water being blown out of the water-chamber at any time desired an auxiliary steanrpipe 57 is brought into play and connects at'ene extremity with the interior ofthe trap-casing and at the other extremity with the steam-cylinder i?, the said pipev 57 being also provided with a cut-oit or globe Valve 58 to control the flow of steamA from the trap-casing to the Said cylinder 12. It will also be noted that the relief-port 4:4 of

the piston 43 operates to relieve the said piston of back pressure during certain operations. Furthermore, the lower central portion of the water-chamber is supplied with a valved drain-pipe 59 for removing sediment or otherl collections and entirely relievingthe said water-chamber of water when desired. The operation of this form of the improvement is similar to that heretofore described and the same principle is involved, whereby the valve 4S .will be held open until a proper drainage of the waterchainbe1=--has ensued, the float 15 lowering gradually in view of the small dimension of the port 54 and which is materially less in diameter than the dischargepipe from the water-chamber. Furthermore, the float 52 in this changed form of the im- The i provement will not operate the valve 4S to close the steam-pipe lli until the bull; of the water hasbeen discharged from the'trap,

when the float will slowly Fall, a before indicated, and the operation so continue repeatedly. To the upper end of the valve 13, as shown by Fig. l, a rod G0 is connected and extends any suitable distance above or away from the top oi the casing l2 for operation by hand to raise the float and control the trap in this'manner whenever desired.

Changes in the form, proportions, and mi-n ing, a dischargepipe communicating with the,

interior of'said casing and having a dischargep valve normallyclosed on its seat by the internal. pressure within the casing, an independent cylinderhavin g communication with the trap-casing by a smallopening 1n the lower portion thereof for the passage therethrough or" the water of condensation, a controlling-float in the cylinder for causing said .discharge-valve to be automatically opened by steam-pressure,.a valve-case fitting exterior of the trap-casing disposed horizontally and having a steam-cylinder as a part thereot', a piston in thesaid steam-cylinder and controlled by the steam to open the said discharge-valve, and a valve connected to the float and controlling the supply of steam to the steam-cylinder.

2. In a-steam-separating trap, a trap-casing, a discharge-pipe communicating with the interior of the easing and having a discharge-valve normally closed on its seat by the internal pressure within the said casing, a cylinder having communication with the interior of a portion of 'the trap-casing by means cfa small opening at the lower part thereof,

`a horizontally-disposed valve-case fitting exterior of the trap-casing and including a steam-cylinder as a partthereoi, a piston in the said steam-cylinder cooperating in connection with the discharge-valve, a steampipe connection between the said piston and a part of the device, a float movable in the said cylinder, and a valve connected to and operated by the said iloat, the said valve connected to the float being in operative position tothe steam and regulating the steampressure on the piston in accordance with the position of the iioat in the cylinder.

3. In a steam-separating trap, the combination. of a casing comprising a lower waterchamber, a cylinder exterior of the said casing and connected to said lower water-chamber, said cylinder being vertically disposed, a closed tloat movable in the said cylinder and having a stem rising .vertically therefrom and attached to a valve, the said stem being tubular and having a comm unicating-opening with IOO IIC

the interior of the upper portion of the cylinder and also withways thronghthe valve to which it is attached, a discharge-pipe communi'cating with the interior of the casing and having a valveLcase fitting, a dischargevalve and a piston mounted within separate portions of the said fitting and arranged in contiguous contacting relation, and a steampipe connection between that portion of the fitting containing the piston and the valve conected to the oatstem, .the said Valve connecte'd7 to the doat-stem operating to open and close' the extremity of the steam-pipe adjacent thereto.

4. In a steam-separating trap the combination of a casing comprisinga lower waterchamber, a cylinder exterior to said casing and connected to said Water-chamber, said cylinder being vertically disposed, enclosed float movable in the said cylinder and having atubular stem rising verticallytheref rom and attached-to a valve, said tubular stem 'having' piston mountedy within separate portions of the said fitting and arranged in contiguous contacting relation, and a. steam-pipe connection between that portion of theftting containing the piston and the valve connected to the neat-stem, said valve connected to the float-stem operating to open and close the eX- tremity of the steam-pipe adjacent thereto.

In testimony that VI claim the foregoing as my own I have hereto aixed my signature in the presence of two witnesses. GEORGE GUILD. Witnesses:

WM. EARL,

XV. M. HOLLAND. 

